CN201335579Y - Device for coolant purification and lubricating oil recovery - Google Patents
Device for coolant purification and lubricating oil recovery Download PDFInfo
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- CN201335579Y CN201335579Y CNU2008202048363U CN200820204836U CN201335579Y CN 201335579 Y CN201335579 Y CN 201335579Y CN U2008202048363 U CNU2008202048363 U CN U2008202048363U CN 200820204836 U CN200820204836 U CN 200820204836U CN 201335579 Y CN201335579 Y CN 201335579Y
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Abstract
The invention discloses a device for coolant purification and lubricating oil recovery, which comprises the following parts connected in sequence: a compressor, a condenser and an evaporator, wherein the condenser and the evaporator are communicated through a first pipe, the first pipe passes through a heat-exchange purifying tank; one end of a fourth pipe is positioned below the liquid level of the evaporator and close to the liquid level and the other end thereof is communicated with the bottom of the heat-exchange purifying tank; one end of a third pipe is communicated with the low-pressure entrance of the compressor and the other end thereof is communicated with the top of the heat-exchange purifying tank; one end of a second pipe is communicated with the condenser and the other end thereof is communicated with the interior of the heat-exchange purifying tank; one end of a sixth pipe is communicated with an oil tank and the other end thereof is communicated with the interior of the heat-exchange purifying tank; one end of the sixth pipe is communicated with the oil tank through a nozzle; one end of an eighth pipe is communicated with the nozzle and the other end thereof is communicated with an oil filter; an oil-tank oil delivery valve is arranged on the eighth pipe; and the mounting positions of the oil tank and the heat-exchange purifying tank are both lower than the mounting position of the condenser. The device for coolant purification and lubricating oil recovery has the advantages of simple and reasonable structure, good effect of lubricating oil recovery, high work efficiency and low energy consumption.
Description
Technical field
The utility model relates to a kind of refrigerant purifies and lubricant recovery device, and the refrigerant in particularly a kind of air-conditioning or the refrigeration system is purified and lubricant recovery device.
Background technology
Centrifugal refrigerating compression in air-conditioning or the refrigeration system is a kind of of steam compression type refrigerating mode.Its refrigeration principle all is by compressor refrigerant vapour to be applied energy, its pressure, temperature are improved, then by condensation, throttling process, make it to become low pressure, refrigerant of low temperature liquid is evaporated to steam in evaporimeter, simultaneously from the refrigerating medium of surrounding environment, as obtaining heat in the cold water refrigerant temperature is reduced, thereby reach the purpose of artificial cooling.This shows that the steam compression type refrigerating circulation comprises four requisite processes such as compression, condensation, throttling, evaporation.Its principle division is as follows:
The first, compression process: after the refrigerant vapour in the evaporimeter was sucked by centrifugal compressor, prime mover was generally motor, by compressor impeller it is applied energy, made the pressure raising of refrigerant vapour and entered condenser; Meanwhile, the temperature of refrigerant vapour is in the at the end also corresponding improve of compression.
The second, condensation process: by high pressure, the high temperature refrigerant steam that compressor comes, emit heat by the cooling water in pipe in condenser, temperature descends to some extent, and simultaneously at saturation pressure, promptly under the pairing condensing pressure of condensation temperature, condensation becomes liquid.At this moment cooling water is because of having absorbed heat from refrigerant vapour, and its temperature will raise to some extent.The temperature of cooling water is all directly relevant with condensation temperature and condensing pressure.
Three, throttling process: high temperature, high pressure refrigerant liquid by condenser bottom is come, when flowing through orifice, puffing takes place, pressure, temperature all reduce, and become low pressure, cryogenic liquid enters in the evaporimeter.
Four, evaporation process: low pressure, low-temperature refrigerant liquid in evaporimeter from refrigerating medium, as cold water, be evaporated to gas behind the middle picked-up heat, the temperature of refrigerating medium is reduced, thereby realization artificial cooling, refrigerant vapour in the evaporimeter is sucked by compressor again and compresses, and repeats above-mentioned compression, condensation, throttling, evaporation process.So go round and begin again, reach the purpose of continuous cooling.
Since at whole revolving meber in high-speed motion, sliding bearing to rotor supports needs the rigidity of lubricating oil to support and cooling, in whole unit, refrigerant system inevitably can mix with lubricating oil system, and no matter it adopts how good seal means, in service in refrigeration unit, and a spot of lubricating oil is from the bearing of compressor, refrigerant gas that gear-box is sneaked into compressor, with mixing in condensate liquid last inflow evaporator after the refrigerant gas liquefaction; On the other hand, at main motor two bearings place, lubricating oil also might enter the motor inner chamber, enters evaporimeter in company with the refrigerant gas behind the cooling motor from the motor muffler then.All can't get back to oil piping system from the lubricating oil that above two kinds of channels enter evaporimeter, and the lubricating oil in the evaporimeter will get more and more.Simultaneously, the lubricating oil in the fuel tank is with fewer and feweri.But, if lubricating oil is sneaked into refrigerant system in a large number,, will reduce the heat exchanger heat exchange property greatly attached to the surface of evaporimeter heat exchanger tube, cause whole unit performance to reduce, so it is very necessary to separate lubricating oil and cold-producing medium in running in real time.
At this situation, some manufacturer has done a little improvement, as disclosing a kind of refrigerating plant among the Chinese patent literature CN1547654A, comprising: the refrigerant loop of the compressing mechanism that is linked in sequence, condenser, swollen rise mechanism and evaporimeter; And will hoard the lubricating oil recovering mechanism that is recycled to compressing mechanism at the refrigeration lubrication oil of evaporimeter, it is characterized by: the swollen mechanism of rising is made of the temp sensing type expansion valve of adjusting its opening degree according to the refrigerant state of evaporator outlet one side, and the lubricating oil recovering mechanism possesses the switch valve of the vaporizer upstream of being connected to one side, and the controlling organization of this switch valve of control, controlling organization constitutes: when lubricating oil reclaims action, by turning round in that above-mentioned switch valve cuts out the state of the time of setting, after making that the degree of superheat of evaporator outlet rises, open this switch valve again and turn round.This refrigerating plant energy recovery section lubricating oil, still, its complex structure, result of use is not ideal enough.
The utility model content
The purpose of this utility model aim to provide a kind of simple and reasonable, the lubricating oil recovering effect is good, high efficiency, energy consumption are low, the refrigerant of good effect of heat exchange is purified and lubricant recovery device, to overcome weak point of the prior art.
A kind of refrigerant by this purpose design is purified and lubricant recovery device, comprises the compressor, condenser and the evaporimeter that join successively, communicates by first pipe between condenser and the evaporimeter, and its architectural feature is that first pipe passes heat exchange purification jar; The 4th pipe one end is positioned at the liquid level below of evaporimeter, and near liquid level, the other end is communicated to the bottom of heat exchange purification jar; The 3rd pipe one end communicates with the low-pressure inlet of compressor, and the other end is communicated to the top of heat exchange purification jar; Second pipe, one end communicates with condenser, and the other end is communicated in the heat exchange purification jar; The 6th pipe one end communicates with fuel tank, and the other end is communicated in the heat exchange purification jar.
Described the 6th pipe one end communicates with fuel tank by nozzle, and the 8th pipe one end communicates with nozzle, and the other end communicates with oil strainer, and the 8th pipe is provided with the fuel tank delivery valve, and the installation site of fuel tank and heat exchange purification jar is all low than the installation site of condenser.
Be provided with the 7th pipe between described fuel tank and the 6th pipe, the 7th pipe one end communicates with fuel tank, and the other end communicates with the 6th pipe, and the 7th pipe is provided with oil return valve.
Described the 3rd pipe is provided with check valve and maintenance valve, and check valve and maintenance valve are arranged on the pipe of the 7th on the 6th pipe and communicate with the 6th pipe between place and the nozzle.
Be serially connected with the first gases at high pressure shut-off valve and the second gases at high pressure shut-off valve on described second pipe, the second gases at high pressure shut-off valve is near condenser, and the first gases at high pressure shut-off valve is near heat exchange purification jar.
Be serially connected with the first cold-producing medium purification shut-off valve and the second cold-producing medium purification shut-off valve on described the 3rd pipe, the second cold-producing medium purification shut-off valve is near the low-pressure inlet of compressor, and the first cold-producing medium purification shut-off valve is near heat exchange purification jar.
Described the 4th pipe is provided with the first mixture liquid taking valve.Evaporimeter communicates with the 5th pipe one end, the 5th pipe other end communicates with the 4th pipe, the 5th pipe is provided with the second mixture liquid taking valve, and the position that the 5th pipe communicates with evaporimeter is lower than the position that the 4th pipe communicates with evaporimeter, the first mixture liquid taking valve and the second mixture liquid taking valve parallel connection.
The utility model is that the lubricating oil separation of will sneak in the cold-producing medium goes out the refrigerant system, and improving the purity of cold-producing medium, and the lubricating oil after will separating sends back to fuel tank, in order to improve effect, whole device is arranged under the condenser.
Because lubricating oil is lighter than liquid refrigerant, the lubricating oil in evaporimeter floats over the top of liquid refrigerant.Therefore, the technical scheme that the utility model provides is the low-temperature mixed liquid of taking to come from the evaporimeter liquid level, by the high temperature refrigerant thermal source heating that comes from condenser, makes the cold-producing medium evaporation in the mixed liquor, gets back to compressor inlet and goes.Lubricating oil then gets back to fuel tank, thereby reached the purpose of separation, purification.Therefore, can when air-conditioning or refrigeration system normally move, constantly carry out the separation of cold-producing medium, lubricating oil, thereby increase work efficiency, cut down the consumption of energy.
Description of drawings
Fig. 1 is the utility model one example structure schematic diagram.
Among the figure: 1 is condenser, and 2 is evaporimeter, and 3 are heat exchange purification jar, 4 is check valve, and 5 is nozzle, and 6 is first pipe, 7 is second pipe, and 8 is the 3rd pipe, and 9 is the 4th pipe, 10 is the 5th pipe, 11 is the 6th pipe, and 12 is the 7th pipe, and 13 is the 8th pipe, 14 is fuel tank, K1 is an oil return valve, and K2 is the first mixture liquid taking valve, and K3 is the second mixture liquid taking valve, K4 is the first gases at high pressure shut-off valve, K5 is the first cold-producing medium purification shut-off valve, and K6 is the maintenance valve, and K7 is the fuel tank delivery valve, K8 is the second gases at high pressure shut-off valve, and K9 is the second cold-producing medium purification shut-off valve.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1, this refrigerant is purified and lubricant recovery device, comprises the compressor, condenser 1 and the evaporimeter 2 that join successively, communicates by first pipe 6 between condenser and the evaporimeter, and first pipe passes heat exchange purification jar 3; The 4th pipe 9 one ends communicate with the liquid level of evaporimeter 2, and the other end is communicated to the bottom of heat exchange purification jar 3; The 3rd pipe 8 one ends communicate with the low-pressure inlet of compressor, and the other end is communicated to the top of heat exchange purification jar 3; Second pipe, 7 one ends communicate with condenser 1, and the other end is communicated in the heat exchange purification jar 3; The 6th pipe 11 1 ends communicate with fuel tank 14, and the other end is communicated in the heat exchange purification jar 3.The 6th pipe 11 1 ends communicate with fuel tank 14 by nozzle 5, the 8th pipe 13 1 ends communicate with nozzle 5, the other end communicates with oil strainer, and the 8th pipe is provided with fuel tank delivery valve K7, and the installation site of fuel tank 14 and heat exchange purification jar 3 is all low than the installation site of condenser 1.Be provided with the 7th pipe 12, the seven pipes one end between fuel tank 14 and the 6th pipe 11 and communicate with fuel tank 14, the other end communicates with the 6th pipe 11, and the 7th pipe 12 is provided with oil return valve K1.The 3rd pipe 8 is provided with check valve 4 and maintenance valve K6, and the 7th pipe 12 that check valve and maintenance valve are arranged on the 6th pipe 11 communicates between place and the nozzle 5 with the 6th pipe 11.
The 3rd pipe 8 is provided with the first cold-producing medium purification shut-off valve K5 and the second cold-producing medium purification shut-off valve K9, and the second cold-producing medium purification shut-off valve is near the low-pressure inlet of compressor, and the first cold-producing medium purification shut-off valve K5 is near heat exchange purification jar 3.
The 4th pipe 9 is provided with the first mixture liquid taking valve K2, evaporimeter 2 communicates with the 5th pipe 10 1 ends, the 5th pipe 10 other ends communicate with the 4th pipe 9, the 5th pipe 10 is provided with the second mixture liquid taking valve K3, the 5th pipe 10 positions that communicate with evaporimeter 2 are lower than the 4th pipe 9 positions that communicate with evaporimeter 2, the first mixture liquid taking valve K2 and the second mixture liquid taking valve K3 parallel connection.
The mode of operation of this device has two kinds: automated manner and manual mode.The user should at first adopt automated manner.Under the reliable situation of automated manner, can not adopt manual mode.If automated manner under certain conditions, significantly the time, can adopt manual mode of operation as spray nozzle clogging or effect.
The first, automated manner: this mode is that the separation and the removal process of lubricating oil carried out simultaneously, set this mode after, no longer operate, just isolated lubricating oil can be recovered in the fuel tank automatically by nozzle.
1, opens K6, close K1 and K4; Regulate the aperture of K7, guarantee that acute variation does not take place the oil level and the pressure of fuel tank.
2, the recovery of the separation of cold-producing medium, lubricating oil and lubricating oil: according to the level condition of cold-producing medium in the evaporimeter visor, open the most approaching subsurface K2 or K3, simultaneously, should open K5, allow the cold-producing medium on the evaporimeter liquid level and the mixed liquor of lubricating oil flow in the retracting device.After high temperature refrigerant thermal source by condenser heated it, the cold-producing medium in the mixed liquor is constantly evaporation just, gets back to compressor inlet, reenters kind of refrigeration cycle.Lubricating oil in the mixed liquor is then constantly got back in the fuel tank by nozzle.
The second, manual mode:
1, at first should close K6 and K7, the refrigerant purifying plant can carry out manual mode and purify.
2, the separation of cold-producing medium, lubricating oil: according to the level condition of cold-producing medium in the evaporimeter visor, open the most approaching subsurface K2 or K3, simultaneously, should open K5, allow the cold-producing medium on the evaporimeter liquid level and the mixed liquor of lubricating oil flow in the retracting device.After high temperature refrigerant thermal source by condenser heated it, the cold-producing medium in the mixed liquor is constantly evaporation just, gets back to compressor inlet, reenters kind of refrigeration cycle.Lubricating oil in the mixed liquor then constantly accumulates in the retracting device.
3, reclaim lubricating oil: after lubricating oil accumulates a period of time, can be lubricated the recovery of oil; Close K2, K3 and K5, open K1 and K4.Allow and the lubrication pressure in the retracting device is delivered in the compressor sump, look concrete condition, reclaim the operation of lubricating oil and carried out once in 4～7 days, each about 3～5 minutes of force feed time by the next higher pressure refrigerant gas of condenser.Close K1 and K4 after having reclaimed, open K2, K3 or K5.
When not using the refrigerant purifying plant, should close K1, K2, K3, K4, K6 and K7, open K5.Unless unit operation for a long time, do not use purifying plant under the situation that fuel level in tank does not all descend, otherwise should use this device for a long time.
When at compressor emergency shutdown, K2 and K5 are opened.
Concrete operations see the following form:
Wherein, zero expression is opened, and * expression is closed, and △ represents crack, and K8 and K9 often open.
Claims (7)
1. a refrigerant is purified and lubricant recovery device, comprises the compressor, condenser (1) and the evaporimeter (2) that join successively, communicates by first pipe (6) between condenser and the evaporimeter, it is characterized in that first pipe passes heat exchange purification jar (3); The 4th pipe (9) one ends are positioned at the liquid level below of evaporimeter, and near liquid level, the other end is communicated to the bottom of heat exchange purification jar; The 3rd pipe (8) one ends communicate with the low-pressure inlet of compressor, and the other end is communicated to the top of heat exchange purification jar; Second pipe (7) one ends communicate with condenser, and the other end is communicated in the heat exchange purification jar; The 6th pipe (11) one ends communicate with fuel tank (14), and the other end is communicated in the heat exchange purification jar.
2. purify and lubricant recovery device according to the described refrigerant of claim 1, it is characterized in that described the 6th pipe one end communicates with fuel tank by nozzle (5), the 8th pipe (13) one ends communicate with nozzle, the other end communicates with oil strainer, the 8th pipe is provided with fuel tank delivery valve (K7), and the installation site of fuel tank and heat exchange purification jar is all low than the installation site of condenser.
3. purify and lubricant recovery device according to the described refrigerant of claim 2, it is characterized in that being provided with between described fuel tank and the 6th pipe the 7th pipe (12), the 7th pipe one end communicates with fuel tank, and the other end communicates with the 6th pipe, and the 7th pipe is provided with oil return valve (K1).
4. purify and lubricant recovery device according to the described refrigerant of claim 3, it is characterized in that described the 3rd pipe is provided with check valve (4) and maintenance valve (K6), check valve and maintenance valve are arranged on the pipe of the 7th on the 6th pipe and communicate with the 6th pipe between place and the nozzle.
5. purify and lubricant recovery device according to the described refrigerant of claim 1, it is characterized in that being serially connected with on described second pipe first gases at high pressure shut-off valve (K4) and the second gases at high pressure shut-off valve (K8), the second gases at high pressure shut-off valve is near condenser, and the first gases at high pressure shut-off valve is near heat exchange purification jar.
6. purify and lubricant recovery device according to the described refrigerant of claim 1, it is characterized in that being serially connected with on described the 3rd pipe first cold-producing medium purification shut-off valve (K5) and the second cold-producing medium purification shut-off valve (K9), the second cold-producing medium purification shut-off valve is near the low-pressure inlet of compressor, and the first cold-producing medium purification shut-off valve is near heat exchange purification jar.
7. purify and lubricant recovery device according to the described refrigerant of claim 1, it is characterized in that described the 4th pipe is provided with the first mixture liquid taking valve (K2); Evaporimeter communicates with the 5th pipe (10) one ends, the 5th pipe other end communicates with the 4th pipe, the 5th pipe is provided with the second mixture liquid taking valve (K3), the position that the 5th pipe communicates with evaporimeter is lower than the position that the 4th pipe communicates with evaporimeter, the first mixture liquid taking valve and the second mixture liquid taking valve parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202048363U CN201335579Y (en) | 2008-12-03 | 2008-12-03 | Device for coolant purification and lubricating oil recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202048363U CN201335579Y (en) | 2008-12-03 | 2008-12-03 | Device for coolant purification and lubricating oil recovery |
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| Publication Number | Publication Date |
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| CN201335579Y true CN201335579Y (en) | 2009-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008202048363U Expired - Fee Related CN201335579Y (en) | 2008-12-03 | 2008-12-03 | Device for coolant purification and lubricating oil recovery |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066532A (en) * | 2015-07-31 | 2015-11-18 | 新疆大全新能源有限公司 | Freon refrigerating system and heating device and method for oil collector of Freon refrigerating system |
| CN105258415A (en) * | 2015-10-15 | 2016-01-20 | 珠海格力电器股份有限公司 | Oil returning device and control method thereof |
| CN105371532A (en) * | 2015-12-24 | 2016-03-02 | 重庆美的通用制冷设备有限公司 | Air conditioner |
| CN110193212A (en) * | 2019-05-14 | 2019-09-03 | 绍兴西爱西尔数控科技有限公司 | A kind of rectifier unit of refrigerant point oil |
| CN110986428A (en) * | 2019-12-18 | 2020-04-10 | 珠海格力电器股份有限公司 | Novel oil return system capable of purifying refrigerant, centrifugal unit and control method of centrifugal unit |
-
2008
- 2008-12-03 CN CNU2008202048363U patent/CN201335579Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066532A (en) * | 2015-07-31 | 2015-11-18 | 新疆大全新能源有限公司 | Freon refrigerating system and heating device and method for oil collector of Freon refrigerating system |
| CN105258415A (en) * | 2015-10-15 | 2016-01-20 | 珠海格力电器股份有限公司 | Oil returning device and control method thereof |
| CN105258415B (en) * | 2015-10-15 | 2017-11-24 | 珠海格力电器股份有限公司 | A kind of oil return apparatus and its control method |
| CN105371532A (en) * | 2015-12-24 | 2016-03-02 | 重庆美的通用制冷设备有限公司 | Air conditioner |
| CN105371532B (en) * | 2015-12-24 | 2018-04-06 | 重庆美的通用制冷设备有限公司 | Air conditioner |
| CN110193212A (en) * | 2019-05-14 | 2019-09-03 | 绍兴西爱西尔数控科技有限公司 | A kind of rectifier unit of refrigerant point oil |
| CN110986428A (en) * | 2019-12-18 | 2020-04-10 | 珠海格力电器股份有限公司 | Novel oil return system capable of purifying refrigerant, centrifugal unit and control method of centrifugal unit |
| CN110986428B (en) * | 2019-12-18 | 2024-05-03 | 珠海格力电器股份有限公司 | Novel oil return system capable of purifying refrigerant, centrifugal unit and control method of novel oil return system |
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| ASS | Succession or assignment of patent right |
Owner name: MEIDI GENERAL REFRIGERATION APPARATUS CO., LTD., C Free format text: FORMER OWNER: MEIDI ELECTRIC APPLIANCES CO., LTD., GUANGDONG Effective date: 20101222 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 528300 PENGLAI ROAD, BEIJIAO TOWN, SHUNDE DISTRICT, FOSHAN CITY, GUANGDONG PROVINCE TO: 400000 TUOZHAN ZONE, YUMACHI INDUSTRIAL PARK, CHAYUAN NEW ZONE, NAN AN DISTRICT, CHONGQING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20101222 Address after: 400000 Development Zone of jade horse pond Industrial Park, new tea garden, Nan'an District, Chongqing Patentee after: Chongqing Midea General Refrigerating Equipment Co., Ltd. Address before: 528300 Penglai Road, Beijiao Town, Shunde District, Guangdong, Foshan Patentee before: Meidi Electric Appliances Co., Ltd., Guangdong |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20141203 |
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| EXPY | Termination of patent right or utility model |